export function parseTime(time, cFormat) {
    if(time) {
        if (arguments.length === 0) {
            return null
        }

        if ((time + '').length === 10) {
            time = +time * 1000
        }

        const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'

        let date
        if (typeof time === 'object') {
            date = time
        } else if (typeof time === 'string') {
            date = new Date(new Date(time).getTime())
        } else if (typeof time === 'number') {
            date = new Date(time / 10000)
        }  else {
            date = new Date(parseInt(time))
        }


        const formatObj = {
            y: date.getFullYear(),
            m: date.getMonth() + 1,
            d: date.getDate(),
            h: date.getHours(),
            i: date.getMinutes(),
            s: date.getSeconds(),
            a: date.getDay()
        }
        const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
            let value = formatObj[key]
            if (key === 'a') return ['一', '二', '三', '四', '五', '六', '日'][value - 1]
            if (result.length > 0 && value < 10) {
                value = '0' + value
            }
            return value || 0
        })
        return time_str
    } else {
        return '-'
    }

}

export function formatTime(time, option) {

    if(time !== undefined) {
        if (typeof time === 'object') {
            time = new Date(time).getTime()
        } else if (typeof time === 'string') {
            time = new Date(new Date(time).getTime())
        } else {
            console.log(parseInt(time))
            time = new Date(parseInt(time))
        }

        const d = new Date(time)
        const now = Date.now()

        const diff = (now - d) / 1000

        if (diff < 30) {
            return '刚刚'
        } else if (diff < 3600) { // less 1 hour
            return Math.ceil(diff / 60) + '分钟前'
        } else if (diff < 3600 * 24) {
            return Math.ceil(diff / 3600) + '小时前'
        } else if (diff < 3600 * 24 * 2) {
            return '1天前'
        }
        if (option) {
            return parseTime(time, option)
        } else {
            return d.getMonth() + 1 + '月' + d.getDate() + '日' + d.getHours() + '时' + d.getMinutes() + '分'
        }
    }

}

/**
 * 数字 格式化
 * @param num
 * @param digits
 * @returns {string}
 */
export function nFormatter(num, digits) {
    const si = [
        {value: 1E18, symbol: 'E'},
        {value: 1E15, symbol: 'P'},
        {value: 1E12, symbol: 'T'},
        {value: 1E9, symbol: 'G'},
        {value: 1E6, symbol: 'M'},
        {value: 1E3, symbol: 'k'}
    ]
    for (let i = 0; i < si.length; i++) {
        if (num >= si[i].value) {
            return (num / si[i].value + 0.1).toFixed(digits).replace(/\.0+$|(\.[0-9]*[1-9])0+$/, '$1') + si[i].symbol
        }
    }
    return num.toString()
}

/**
 * 格式化文件大小
 * @returns {string}
 */
export function formatSize(size) {
    if (size > 1024 * 1024 * 1024 * 1024) {
        return (size / 1024 / 1024 / 1024 / 1024).toFixed(2) + ' TB'
    } else if (size > 1024 * 1024 * 1024) {
        return (size / 1024 / 1024 / 1024).toFixed(2) + ' GB'
    } else if (size > 1024 * 1024) {
        return (size / 1024 / 1024).toFixed(2) + ' MB'
    } else if (size > 1024) {
        return (size / 1024).toFixed(2) + ' KB'
    }
    return size.toString() + ' B'
}

/**
 * 移除修改数据时的创建时间和更新时间
 * @param obj
 * @returns {*}
 */
export function filterSaveOrUpdateTime(obj) {
    return Object.assign(obj, {utime: null, ctime: null})
}

